This study aims to assess the acceptability, feasibility, and preliminary efficacy of an e-Health psychological intervention specifically designed to promote sexual health, mental health, and general well-being and quality of life in men with prostate cancer. A pilot study will be conducted involving prostate cancer survivors randomly assigned to one of two conditions: the experimental group (receiving the program) vs the control condition (waiting list). The experimental group is expected to improve on outcomes related to mental and sexual well-being when compared to the control group. Furthermore, the experimental group is expected to show good acceptability of the intervention program. This study aims to inform the design and methodology to be adopted in a future randomized controlled trial aimed to further test the e-Health intervention's efficacy.